Consolidated Statements of Operations and Comprehensive Income (Loss) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Revenue:
Total revenue		$ 323.0	$ 281.6	$ 205.8
Cost of sales:
Cost of service	[1]	(75.1)	(71.4)	(51.8)
Cost of product sales		(52.6)	(21.9)	(17.8)
Selling, general and administrative expenses		(115.5)	(101.9)	(90.3)
Acquisition and integration related transaction expenses			(0.5)	(1.6)
Depreciation and amortization		(39.9)	(39.9)	(48.8)
Net operating income (loss)		39.9	46.0	(4.5)
Other expense
Interest expense, net		(27.7)	(25.3)	(44.3)
Change in fair value of warrant liability				0.9
Gain on disposal of business			0.9
Other finance income		0.4	1.1	5.7
Total other expense, net		(27.3)	(23.3)	(37.7)
Income (loss) before income taxes		12.6	22.7	(42.2)
Income tax (expense) benefit		(5.0)	(2.1)	1.6
Net income (loss)		7.6	20.6	(40.6)
Other comprehensive (loss) income:
Foreign currency translation (loss) gain		(5.9)	12.7	0.7
Change in fair value of hedging instrument				0.3
Reclassification of loss on hedging instrument to comprehensive income		0.3	0.7	1.5
Actuarial (losses) gains on pension plan		(0.7)	(6.4)	10.5
Other comprehensive (loss) income		(6.3)	7.0	13.0
Comprehensive income (loss)		$ 1.3	$ 27.6	$ (27.6)
Net income (loss) per common share – basic		$ 0.27	$ 0.73	$ (1.66)
Net income (loss) per common share – diluted		$ 0.26	$ 0.71	$ (1.66)
Weighted average number of shares outstanding during the year – basic		28,073,408	28,049,918	24,402,461
Weighted average number of shares outstanding during the year – diluted		29,214,583	29,092,855	24,402,461
Stock-based compensation included in:
Selling, general and administrative expenses		$ (11.2)	$ (10.8)	$ (13.0)
Service [Member]
Revenue:
Total revenue		261.2	248.4	180.2
Product Sales [Member]
Revenue:
Total revenue		$ 61.8	$ 33.2	$ 25.6

[1] Excluding depreciation and amortization